THE INFLUENCE OF DIFFERENT PECKING DEPTH ON AMOUNT OF APICALLY EXTRUDED DEBRIS DURING ROOT CANAL PREPARATION
2021
Aim: The aim of this study was to compare apically extruded debris caused by different pecking depth of Reciproc and HyFlex EDM systems. Materials and Methods: Seventy-two human mandibular premolar teeth were randomly divided into 4 experimental groups (n=18) based on the file type and pecking depths. In Group 1, a HyFlex EDM (Coltene-Whaledent, Allstetten, Switzerland) with 2 mm distance was used, in Group 2, HyFlex EDM with 4 mm distance was used. In Group 3, Reciproc (VDW, Munich, Germany) with 2 mm distance was used, and in Group 4, Reciproc with 4 mm distance was used. The apically extruded debris was collected in pre-weighed Eppendorf tubes. Three sequential weight measurements were recorded for each Eppendorf tubes, and the average values were noted. Debris amount was calculated by subtracting the weight of the empty tubes from the weight of the tubes containing the debris. The data were analyzed using one-way analysis of variance (ANOVA) and Tukey’s post hoc tests. Results: There was statistically significant difference between Group 4 (Reciproc with 4mm distance) and all the other groups (p 0.05). The preparation time was the statistically significantly different between groups (p=0,008) and preparation time was longer in Group 1 than in Group 2 (p=0,012) and Group 4 (0,017). Conclusions: Within the limitations of the present study, all groups led to a measurable apical extrusion of debris and reciprocal motion with increasing the pecking depth caused the most debris extrusion. Keywords: Apical debris extrusion, pecking depth, reciprocating, root canal treatment, rotating, single-file system. Kok Kanal Preparasyonu Sirasinda Farkli Gagalama Derinliginin Apikal Debris Miktarina Etkisi Ozet Amac: Reciproc ve HyFlex EDM sistemlerinin farkli gagalama derinliklerinin neden oldugu apikale itilmis debris miktarini karsilastirmaktir. Gerec ve yontem: Yetmis iki insan alt cene kucuk azi disi, kullanilan ege ve gagalama derinliklerine gore rastgele 4 deney grubuna ayrildi (n = 18). Grup 1'de 2 mm mesafede bir HyFlex EDM (Coltene-Whaledent, Allstetten, Isvicre), Grup 2'de 4 mm mesafede HyFlex EDM kullanilmistir. Grup 3'te 2 mm mesafe ile Reciproc (VDW, Munih, Almanya), Grup 4'te 4 mm mesafe ile Reciproc kullanildi. Apikalden disari cikmis debris, onceden tartilmis Eppendorf tuplerinde toplandi. Daha sonra her Eppendorf tupu icin uc ardisik agirlik olcumu okundu ve ortalama deger kaydedildi. Debris miktari, bos tuplerin agirliginin, debris iceren tuplerin agirligindan cikarilmasiyla hesaplanmistir. Veriler tek yonlu varyans analizi (ANOVA) ve Tukey’in post hoc testleri kullanilarak analiz edildi. Bulgular: Grup 4 (4 mm mesafe ile Reciproc) ve diger tum gruplar (p 0.05). Preparasyon suresi gruplar arasinda istatistiksel olarak anlamli derecede farkliydi (p = 0,008) ve preparasyon suresi Grup 1'de Grup 2'ye (p = 0,012) ve Grup 4'e (0,017) gore daha uzundu. Sonuclar: Bu calismanin sinirlamalari dâhilinde, tum gruplarda olculebilir bir apikal debris cikisi goruldu ve reciprocal hareket ile artan gagalama derinligi en fazla debris cikisina sebep oldu.
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